Bag-form



A. M. BATESL BAG FORM.

APPLICATION HLED MAR. 27 I919.

Patented Mar. 9, 1920.

z. 1, L90, A.

[721/6 732507" flcZeZmeT' Jifiwfw J 7 15-660 rngfl.

UNITED STATES PATENT OFFICE.

ADELMER M. BATES,'OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE BAG COM-PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

BAG-FORM.

Specification of Letters Patent.

Patented Mar. 9, 1920.

To all whom it may concern:

Be it known that I, ADELMER M. BATES, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Bag-Forms, of which thefollowing is a specification.

My invention relates to bag material adapted for use in preparing filledbags which are to be formed from continuous rolls of bag material.

The operation of forming and filling such bags is, of course, commonlycarried on by machinery and it is undesirable if not impracticable toprint the exterior of the bags after they have been filled.

I have found, in working out my method of making filled bags fromcontinuous rolls of material, that it is highly inconvenient owing tovarious conditions and business methods which prevail in this art, toprint the bag material as part of the immediate process of making andfilling the bags. I find that it is better to do the bag printing as aseparate process and to feed from continuous rolls of such separatelyprinted bag material into the apparatus for making and filling suchbags.

It is, however, indispensable that the printed material on each bagshould be properly located on the finished bag, otherwise the finishedproduct will be unsymmetrical. It is extremely dii'licult, owing to theuse of machines and the necessity of relying on those who operate themachines, to get this necessary symmetry.

For all these reasons, I have worked out the solution of the problem.

The invention is illustrated in the accompanying drawing wherein- Figure1 is a dia rammatic representation of a method 0 forming the printedroll;

Fig. 2 is a plan view of a section of such printed roll;

Fig. 3 is a View of a filled bag formed from such roll.

Like parts are indicated by like letters throughout the several figures.

A is a roll of raw or unprinted material, B a printing ap aratusdiagrammatically shown through w ich it passes and C a roll of thefinished or printed material. D

is the material in question which is shown with the successively printedand similar sections E, E at the side and the intermediate indicationmarks F which indicate the line of severance. G, G are the stitchingline indicator marks placed on o posite sides of the lines F, F in equaldistance therefrom. These linesmay be made in any desired manner, theobject of them being to clearly show the operator where the stitchingand the severing is to be done. One or more of them may be used. Therolls of such printed marked material may be prepared anywhere and apartfrom or in a factory or building other than that in which the bag fillinand making operation is carried out. he rolls so formed, printed andmarked are fed into the ba filling and making machine in any desiredmanner, and the product emerges as the finished bag with the printedmaterial in every instance in the exact desired position on the bag. Theoperator has always before him as the work progresses the mark or marksindicating where the goods is to be stitched or severed or both, so thatthe roll will always be placed, by him, in the proper position to insurethe desired symmetry.

The printed material, in a roll, and in actual practice, is first foldedand stitched so as to form a tube with the seam outside and the printedmatter inside. This tube is then reversed so as to bring the scam insideand the printed matter outside. The bags are then formed by successivelydepositing in the tube a series of measured quantities each of whichoccupies a section of the tube and the tube is so manipulated that theprinted material comes into proper position on the outside of such tube.Two seams are then run across the tube, between successive charges andbetween the seams the bag material is severed and by continuing theprocess a series of bags will be produced from this material. Thisstitchmg and severing operation is made certain by the presence of themarking lines or marks so as always to bring the printed material intosymmetrical relation with the edges of the side of the bag.

I have spoken of the roll of material but, of course, it will beunderstood that by that.

term I mean to indicate any strip of material of any length or size orshape, roll or otherwise.

I claim:

As a new article of manufacture, a. roll of bag material, adapted to beimpressed, folded, severed and sewed by a continuous series of steps toform separate bags, provided with a series of transverse in icatingmarkings, which divide it into uniform successive areas for thedirection of the operator, and a series of separate uniform impressionscontaining matter appropriate to such pro-posed bags, arrangedsubstantially in the middle of successive areas bounded 15 each by theindicating markings, the longitudinal edge and the middle line of theroll. In testimony whereof I affix my signature in the presence of twowitnesses this 20th day of March, 1919.

ADELMER M. BATES. Witnesses:

EDNA B. PETERSON, AGNES C. LARSEN.

